Question

Which of the following solution of $KCl$ has the lowest value of specific conductance?

• A. 1 M
• B. 0.1 M
• C. 0.01 M
• D. 0.001 M

Answer 1

The correct option is D 0.001 M

$\kappa =\frac{{\Lambda }_m\times M}{1000}$

where $\kappa$=specific conductance, ${\Lambda }_m$=molar conductance, $M$=molarity of solution

At constant ${\Lambda }_m$,

$\kappa \propto M$

Therefore, the solution having the lowest molarity will have the lowest value of specific conductance.

Hence, option $D$ is correct.